A Novel ISAR Imaging Algorithm for Nonuniformly Rotating Target

Xia Bai; Yi Feng; Juan Zhao

doi:10.1109/IGARSS39084.2020.9323354

A Novel ISAR Imaging Algorithm for Nonuniformly Rotating Target

Xia Bai, Yi Feng, Juan Zhao

School of Information and Electronics

Beijing Institute of Technology

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

High resolution inverse synthetic aperture radar (ISAR) imaging of nonuniform rotating target is a challenging task because of migration through range cells (MTRC) and high order phase term. A novel ISAR imaging algorithm is proposed: (1) range compression and translational motion compensation; (2) MTRC compensation by using keystone transform; (3) the optimal order estimation; (4) fractional Fourier transform (FrFT). The proposed algorithm need not search, which reduces the computational cost. Experiment results by using MIG-25 and B-727 data have shown that the processing scheme can effectively mitigate MTRC and phase error, and it can produce well-focused images.

Original language	English
Title of host publication	2020 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2020 - Proceedings
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	1137-1140
Number of pages	4
ISBN (Electronic)	9781728163741
DOIs	https://doi.org/10.1109/IGARSS39084.2020.9323354
Publication status	Published - 26 Sept 2020
Event	2020 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2020 - Virtual, Waikoloa, United States Duration: 26 Sept 2020 → 2 Oct 2020

Publication series

Name	International Geoscience and Remote Sensing Symposium (IGARSS)

Conference

Conference	2020 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2020
Country/Territory	United States
City	Virtual, Waikoloa
Period	26/09/20 → 2/10/20

Keywords

Inverse synthetic aperture radar
fractional Fourier transform
nonuniform rotating target
time-frequency distribution

Access to Document

10.1109/IGARSS39084.2020.9323354

Cite this

Bai, X., Feng, Y., & Zhao, J. (2020). A Novel ISAR Imaging Algorithm for Nonuniformly Rotating Target. In 2020 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2020 - Proceedings (pp. 1137-1140). Article 9323354 (International Geoscience and Remote Sensing Symposium (IGARSS)). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/IGARSS39084.2020.9323354

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title = "A Novel ISAR Imaging Algorithm for Nonuniformly Rotating Target",

abstract = "High resolution inverse synthetic aperture radar (ISAR) imaging of nonuniform rotating target is a challenging task because of migration through range cells (MTRC) and high order phase term. A novel ISAR imaging algorithm is proposed: (1) range compression and translational motion compensation; (2) MTRC compensation by using keystone transform; (3) the optimal order estimation; (4) fractional Fourier transform (FrFT). The proposed algorithm need not search, which reduces the computational cost. Experiment results by using MIG-25 and B-727 data have shown that the processing scheme can effectively mitigate MTRC and phase error, and it can produce well-focused images.",

keywords = "Inverse synthetic aperture radar, fractional Fourier transform, nonuniform rotating target, time-frequency distribution",

author = "Xia Bai and Yi Feng and Juan Zhao",

note = "Publisher Copyright: {\textcopyright} 2020 IEEE.; 2020 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2020 ; Conference date: 26-09-2020 Through 02-10-2020",

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doi = "10.1109/IGARSS39084.2020.9323354",

language = "English",

series = "International Geoscience and Remote Sensing Symposium (IGARSS)",

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Bai, X, Feng, Y & Zhao, J 2020, A Novel ISAR Imaging Algorithm for Nonuniformly Rotating Target. in 2020 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2020 - Proceedings., 9323354, International Geoscience and Remote Sensing Symposium (IGARSS), Institute of Electrical and Electronics Engineers Inc., pp. 1137-1140, 2020 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2020, Virtual, Waikoloa, United States, 26/09/20. https://doi.org/10.1109/IGARSS39084.2020.9323354

A Novel ISAR Imaging Algorithm for Nonuniformly Rotating Target. / Bai, Xia; Feng, Yi; Zhao, Juan.
2020 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2020 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2020. p. 1137-1140 9323354 (International Geoscience and Remote Sensing Symposium (IGARSS)).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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N2 - High resolution inverse synthetic aperture radar (ISAR) imaging of nonuniform rotating target is a challenging task because of migration through range cells (MTRC) and high order phase term. A novel ISAR imaging algorithm is proposed: (1) range compression and translational motion compensation; (2) MTRC compensation by using keystone transform; (3) the optimal order estimation; (4) fractional Fourier transform (FrFT). The proposed algorithm need not search, which reduces the computational cost. Experiment results by using MIG-25 and B-727 data have shown that the processing scheme can effectively mitigate MTRC and phase error, and it can produce well-focused images.

AB - High resolution inverse synthetic aperture radar (ISAR) imaging of nonuniform rotating target is a challenging task because of migration through range cells (MTRC) and high order phase term. A novel ISAR imaging algorithm is proposed: (1) range compression and translational motion compensation; (2) MTRC compensation by using keystone transform; (3) the optimal order estimation; (4) fractional Fourier transform (FrFT). The proposed algorithm need not search, which reduces the computational cost. Experiment results by using MIG-25 and B-727 data have shown that the processing scheme can effectively mitigate MTRC and phase error, and it can produce well-focused images.

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KW - fractional Fourier transform

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KW - time-frequency distribution

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Bai X, Feng Y, Zhao J. A Novel ISAR Imaging Algorithm for Nonuniformly Rotating Target. In 2020 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2020 - Proceedings. Institute of Electrical and Electronics Engineers Inc. 2020. p. 1137-1140. 9323354. (International Geoscience and Remote Sensing Symposium (IGARSS)). doi: 10.1109/IGARSS39084.2020.9323354

A Novel ISAR Imaging Algorithm for Nonuniformly Rotating Target

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